问题
单项选择题
Which reason for purchasing U. S. Treasury securities is least valid（）
A. Coupon strips synthesize a zero-coupon bond.
B. Treasury-bonds are available in maturities of two years to nearly 30 years.
C. Treasury Inflation Protection Securities (TIPS) raise their principal value to adjust for inflation.
答案
参考答案：B
解析：
T-bonds are securities with maturities of more than 10 years. T-notes have maturities between 2 and 10 years. The principal value of TIPS increases with inflation while the coupon rate remains fixed. Coupon strips are coupon payments from a Treasury security that are sold separately as zero-coupon securities. Government securities dealers provide a continuous and highly liquid secondary market for Treasury securities.